165562311155357 has 2 divisors, whose sum is σ = 165562311155358. Its totient is φ = 165562311155356.

The previous prime is 165562311155341. The next prime is 165562311155399. The reversal of 165562311155357 is 753551113265561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163117572519001 + 2444738636356 = 12771749^2 + 1563566^2 .

It is a cyclic number.

It is not a de Polignac number, because 165562311155357 - 2⁴ = 165562311155341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165562311175357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82781155577678 + 82781155577679.

It is an arithmetic number, because the mean of its divisors is an integer number (82781155577679).

Almost surely, 2^{165562311155357} is an apocalyptic number.

It is an amenable number.

165562311155357 is a deficient number, since it is larger than the sum of its proper divisors (1).

165562311155357 is an equidigital number, since it uses as much as digits as its factorization.

165562311155357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14175000, while the sum is 56.

The spelling of 165562311155357 in words is "one hundred sixty-five trillion, five hundred sixty-two billion, three hundred eleven million, one hundred fifty-five thousand, three hundred fifty-seven".